Home / 153,312.12-211,554.99-88,802.30

Finding the Fourth Proportional to 153,312.12, 211,554.99 and 88,802.30

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Solution

The fourth proportional to 153,312.12, 211,554.99 and 88,802.30 is: 122,538.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,312.12 : 211,554.99 = 88,802.30 : x
  2. Step 2: Convert to fraction form
    153,312.12/211,554.99 = 88,802.30/x
  3. Step 3: Cross multiply
    153,312.12x = 211,554.99 × 88,802.30
  4. Step 4: Simplify right side
    153,312.12x = 18,786,568,630.70
  5. Step 5: Solve for x
    x = 18,786,568,630.70/153,312.12
  6. Step 6: Final answer
    x = 122,538.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.